Wall structure and liner therefor



p 19341 J. H. PLUNKETT ,9

WALL STRUCTURE AND LINER THEREFOR Filed June 2; 1952 IN V EN TOR. J52zp/mzefi ATTORNEY.

Patented Sept.l1, 19341 WALL smoc'ruas AND mammal-on.

John H. Plunkett, Beverly Hills, Calif., aaslgnor,

by mesne assignments, to The Patent and Licensing Corporation, New York,N. Y., a cor- I poration of Massachusetts Application June 2,1932,Serial No. 614,860.

4 Claims. (01. 12-424) This invention relates to a building material andto a construction in which the material is utilized. More particularly,the invention relates to waterproof sheathing material which is suitablefor use as a lining beneath stucco, plaster and like material.

I have found that if a sheet of felted fibrous material is saturatedwith a low melting point asphalt and then coated on one side only withhigh melting point asphalt the material forms an excellent waterproofinglining for walla-ceilings, floors and the like, to which the plaster,stucco or other similar material used as an external covering can befirmly anchored.

Ordinary saturated felt is rather porous and in consequence thereof iscapable of absorbing moisture. If stucco or plaster is applied to asheet of saturated felt the moisture will be absorbed from the stucco orplaster by the belt and it willexert sufficient suction to firmly unitethe stucco or plaster thereto. By applying a coat of high melting pointasphalt to that face of the sheet of fibrous material which is oppositeto that to which the stucco or plaster is anchored, the sheet can bemade impervious to water. Besides serving as an anchoring medium for thestucco or plaster and as a waterproofing lining for the wall, the sheetwhich has been so saturated and coated also serves to retain the wateradsorbed from the stucco or plaster, thereby causing slow drying thereofwith the result that setting takes place slowly, and a very firm andhard finished wall is obtained.

My invention will be more fully understood from the followingdescription in conjunction with the accompanying drawing of which;

Figure 1 is a perspective view of my novel construction withtheouter-layer broken away;

Figure 2 is a cross-sectional view of the con.- struction shown inFigure 1, and

Figure 3' is an enlarged fragmentary crosssection showing my novelconstruction.

Referring to the drawing, the numeral 1 indicates generally theconstruction in accordance with my invention. The numeral 2 indicatesthe sheet of fibrous material which has been saturatedvwith asphalthaving a melting point asphalt of from 130 to- 150 F. and coated on oneside only with asphalt having a melting point of from 200 to 250 F. Thecoating of asphalt is indicated by the numeral 3. 1

The sheet as thus prepared may be made in any desired length and ofsuitable widthfand wound into rolls for-shipment.

Thesheets so prepared are fastened to the studding 4 of a building sothat the marginal edges are in overlapping relation as indicated at 5.

As will be apparent from the drawing, the sheets are fastened to thestudding with the asphalt coated face thereof against the studding. The

saturated face of the sheet is on the outside. After the sheets 1, havebeen fastened to the studding, stucco or plaster is then applied to thesaturated surface of the .sheets. If necessary, wire netting may beinterposed between the sheets and the stucco in order to more firmlyhold the stucco in place.

If the sheathing in accordance with my in-- vention is used as a linerfor outside walls, the asphalt coated surface will be innermost and thesaturated surface will be outermost and the stuconly as far as theasphalt coating and be deflected outwardly again. l

The material made in accordance with'my invention is cheap and simple tomanufacture and at the same time provides an effectivemoistureimpervlous backing sheet to which stucco or plaster can be keyedor anchored.

I claim as my invention:

1. A wall structure comprising a layer ofstucco.

and a sheet of fibrous felted material beneath and in contact with saidstucco, said sheet of fibrous material being saturated with asphalt andcoated with asphalt on the surface of the sheet, out of contact withsaid stucco.

2. A lining for stucco, plaster and similar walls comprising a pluralityof overlapping sheets which have been saturated with low melting pointasphalt and coated on one face only with high melting point asphalt, theuncoated face being substance and coated with a film of waterproofingsubstance only on the surface of said sheets which is out of contactwith the outer layer.

4. A construction for walls, fioors, ceilings or the like, comprisingoverlapping sheets each coinposed of a unitary felted fibrous sheetsaturated with bituminous material, one face of which'is provided withan impervious coating the opposite face being'pervio.us. to moisture.and a layer ofstucco or plaster adhering directly to said pervious face.I V Q JOHN H. PLUNKE'I'I.

